/* ─── Reset & Tokens ─────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg:       #020409;
  --bg2:      #07090f;
  --wire:     #00f0ff;
  --wire-dim: rgba(0,240,255,0.18);
  --blue:     #0055ff;
  --green:    #00ffaa;
  --red:      #ff3366;
  --yellow:   #f5e642;
  --text:     rgba(255,255,255,0.55);
  --text-hi:  rgba(255,255,255,0.92);
  --border:   rgba(0,240,255,0.12);
  --mono:     'DM Mono', monospace;
  --display:  'Unbounded', sans-serif;
  --nav-h:    64px;
}

html { background: var(--bg); scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-hi);
  font-family: var(--mono);
  overflow-x: hidden;
  min-height: 100vh;
  cursor: crosshair;
}

/* ─── Grain overlay ──────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9000;
  opacity: 0.5;
}

/* ─── Navbar ─────────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  backdrop-filter: blur(20px) saturate(1.4);
  background: rgba(2,4,9,0.72);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--display);
  font-size: 0.8rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  color: var(--wire);
  text-decoration: none;
  text-shadow: 0 0 20px rgba(0,240,255,0.4);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.nav-logo::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--wire);
  transform: rotate(45deg);
  box-shadow: 0 0 8px var(--wire);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}
.nav-links a {
  display: block;
  padding: 0.45rem 1rem;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  border: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--wire);
  border-color: var(--wire-dim);
  background: rgba(0,240,255,0.04);
}

/* scanline marker on active */
.nav-links a.active::before {
  content: '▶ ';
  font-size: 0.45rem;
  opacity: 0.6;
}

/* ─── Corner brackets (decorative) ──────────────────────────── */
.corner { position: fixed; width: 18px; height: 18px; z-index: 900; pointer-events: none; }
.corner svg { width: 100%; height: 100%; }
.corner.bl { bottom: 1.2rem; left: 1.2rem; transform: scaleY(-1); }
.corner.br { bottom: 1.2rem; right: 1.2rem; transform: scale(-1); }

/* ─── Hero ───────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 4rem) 2.5rem 4rem;
  overflow: hidden;
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 900px;
}

.hero-tag {
  font-size: 0.58rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--wire);
  opacity: 0.7;
  margin-bottom: 1.8rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.hero-tag::before {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--wire);
  opacity: 0.5;
}

.hero-title {
  font-family: var(--display);
  font-size: clamp(1.6rem, 3vw, 3rem);
  font-weight: 900;
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: #fff;
  text-shadow: 0 0 80px rgba(0,240,255,0.15);
  margin-bottom: 2rem;
}
.hero-title em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0,240,255,0.5);
}

.hero-sub {
  max-width: 420px;
  font-size: 0.72rem;
  line-height: 2;
  color: var(--text);
  letter-spacing: 0.04em;
  margin-bottom: 3rem;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--wire);
  text-decoration: none;
  padding: 0.9rem 2rem;
  font-family: var(--mono);
  font-weight: 500;
  position: relative;
  transition: box-shadow 0.2s;
  box-shadow: 0 0 24px rgba(0,240,255,0.3);
}
.hero-cta:hover { box-shadow: 0 0 40px rgba(0,240,255,0.55); }
.hero-cta::after {
  content: '↓';
  font-size: 0.9rem;
}

/* Hero stats bar */
.hero-stats {
  position: absolute;
  bottom: 3rem;
  left: 2.5rem;
  right: 2.5rem;
  display: flex;
  gap: 3rem;
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  color: var(--text);
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  z-index: 10;
}
.stat-val {
  display: block;
  font-family: var(--display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--wire);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 0.4rem;
  text-shadow: 0 0 20px rgba(0,240,255,0.4);
}

/* ─── Section scaffolding ────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 4rem;
}
.section-label {
  font-size: 0.58rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--wire);
  opacity: 0.6;
}
.section-title {
  font-family: var(--display);
  font-size: clamp(1.6rem, 3.5vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-hi);
}
.section-line {
  flex: 1;
  height: 1px;
  background: var(--border);
  margin-left: 1rem;
}

/* ─── Projects Section ───────────────────────────────────────── */
#projects {
  padding: 7rem 2.5rem;
  position: relative;
}

/* Vertical timeline line */
#projects::before {
  content: '';
  position: absolute;
  left: calc(2.5rem + (min(100vw - 5rem, 1200px) * 0.28) + 1rem);
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom,
    transparent,
    var(--border) 10%,
    var(--border) 90%,
    transparent
  );
}

.projects-inner { max-width: 1200px; }

/* ─── Project Card ───────────────────────────────────────────── */
.project-card {
  display: grid;
  grid-template-columns: 28% 1fr;
  gap: 0 4rem;
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(.22,1,.36,1), transform 0.7s cubic-bezier(.22,1,.36,1);
}
.project-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.project-card:first-child { border-top: 1px solid var(--border); }

/* ── Left: 3D model ── */
.card-model {
  position: relative;
  aspect-ratio: 1;
  max-width: 240px;
  justify-self: center;
}
.card-canvas {
  width: 100%;
  height: 100%;
  display: block;
  border: 1px solid var(--border);
}
/* Corner brackets on canvas */
.card-model::before,
.card-model::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
}
.card-model::before {
  top: -1px; left: -1px;
  border-top: 1.5px solid var(--wire);
  border-left: 1.5px solid var(--wire);
}
.card-model::after {
  bottom: -1px; right: -1px;
  border-bottom: 1.5px solid var(--wire);
  border-right: 1.5px solid var(--wire);
}
/* Extra corners via child */
.card-model .corner-tr,
.card-model .corner-bl {
  position: absolute;
  width: 12px;
  height: 12px;
  pointer-events: none;
}
.card-model .corner-tr {
  top: -1px; right: -1px;
  border-top: 1.5px solid var(--wire);
  border-right: 1.5px solid var(--wire);
}
.card-model .corner-bl {
  bottom: -1px; left: -1px;
  border-bottom: 1.5px solid var(--wire);
  border-left: 1.5px solid var(--wire);
}

/* Model index badge */
.card-index {
  position: absolute;
  bottom: calc(100% + 0.6rem);
  left: 0;
  font-size: 1rem;
  letter-spacing: 0.3em;
  color: var(--wire);
  opacity: 0.5;
}

/* ── Right: content ── */
.card-content { padding: 0.5rem 0; }

.card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.card-tag {
  font-size: 0.5rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--wire);
  border: 1px solid var(--wire-dim);
  padding: 0.25rem 0.6rem;
  opacity: 0.8;
}

.card-title {
  font-family: var(--display);
  font-size: clamp(1.4rem, 2.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text-hi);
  margin-bottom: 1rem;
}

.card-desc {
  font-size: 0.68rem;
  line-height: 1.95;
  color: var(--text);
  letter-spacing: 0.02em;
  max-width: 480px;
  margin-bottom: 2rem;
}

.card-meta {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--text);
}
.card-meta span { opacity: 0.5; margin-right: 0.4rem; }

/* The main link */
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.58rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--wire);
  text-decoration: none;
  border: 1px solid var(--wire-dim);
  padding: 0.7rem 1.4rem;
  transition: background 0.2s, box-shadow 0.2s, border-color 0.2s;
  position: relative;
  overflow: hidden;
}
.card-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--wire);
  opacity: 0;
  transition: opacity 0.2s;
}
.card-link:hover {
  color: var(--bg);
  border-color: var(--wire);
  box-shadow: 0 0 24px rgba(0,240,255,0.3);
}
.card-link:hover::before { opacity: 1; }
.card-link span { position: relative; }
.card-link-arrow { position: relative; font-size: 0.9rem; transition: transform 0.2s; }
.card-link:hover .card-link-arrow { transform: translateX(3px); }

/* Secondary links */
.card-links-row {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}
.card-link-sm {
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s;
}
.card-link-sm:hover { color: var(--wire); }
.card-link-sm::before { content: '↗'; }

/* ─── About / CTA strip ──────────────────────────────────────── */
#about {
  padding: 7rem 2.5rem;
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text .hero-tag { margin-bottom: 1.2rem; }
.about-title {
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--text-hi);
  margin-bottom: 1.5rem;
}
.about-title em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1px rgba(0,240,255,0.45);
}
.about-body {
  font-size: 0.68rem;
  line-height: 2;
  color: var(--text);
  margin-bottom: 2rem;
}

.about-links {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}
.about-link-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem;
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  transition: background 0.18s;
  group: true;
}
.about-link-row:last-child { border-bottom: none; }
.about-link-row:hover { background: rgba(0,240,255,0.04); }
.alink-label {
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text);
  transition: color 0.18s;
}
.about-link-row:hover .alink-label { color: var(--wire); }
.alink-right {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  color: var(--text);
  opacity: 0.4;
  transition: opacity 0.18s, color 0.18s;
}
.about-link-row:hover .alink-right { opacity: 1; color: var(--wire); }

/* ─── Footer ─────────────────────────────────────────────────── */
footer {
  padding: 2.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--text);
  opacity: 0.5;
}

/* ─── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--wire-dim); }

/* ─── Animations ─────────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-tag    { animation: fadeUp 0.8s 0.2s both; }
.hero-title  { animation: fadeUp 0.8s 0.35s both; }
.hero-sub    { animation: fadeUp 0.8s 0.5s both; }
.hero-cta    { animation: fadeUp 0.8s 0.65s both; }
.hero-stats  { animation: fadeUp 0.8s 0.8s both; }